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Finding the Fourth Proportional to 119,801.34, 165,400.11 and 84,135.42

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Solution

The fourth proportional to 119,801.34, 165,400.11 and 84,135.42 is: 116,159.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,801.34 : 165,400.11 = 84,135.42 : x
  2. Step 2: Convert to fraction form
    119,801.34/165,400.11 = 84,135.42/x
  3. Step 3: Cross multiply
    119,801.34x = 165,400.11 × 84,135.42
  4. Step 4: Simplify right side
    119,801.34x = 13,916,007,722.90
  5. Step 5: Solve for x
    x = 13,916,007,722.90/119,801.34
  6. Step 6: Final answer
    x = 116,159.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.